leaderboard

index.js

function LeaderBoard(doc) {
    var elem = Fragment(html)
        , leaderBoardElem = elem.querySelector(".leaderboard")
        , playerSet = doc.createSet("type", "player")
        , oldSelected = selected.get("player")
        , sel = selectron()

    playerSet.forEach(addPlayer)

    playerSet.on("add", addPlayer)

    sel.on("select", function (player) {
        oldSelected = null
        selected.set("player", player.id)
    })

    return {
        appendTo: appendTo
    }

    function addPlayer(obj) {
        var player = Player(obj)
        player.appendTo(leaderBoardElem)
        player.on("selected", sel.select)

        if (oldSelected === player.id) {
            sel.select(player)
        }
    }

    function appendTo(parent) {
        parent.appendChild(elem)
    }
}